Bolt clocked 10.04 seconds on Friday evening, the first time he has failed to break 10 seconds in a final since 2009 in the middle of a rainstorm in Toronto.
But the triple Olympic champion was his usual relaxed self at a press conference ahead of his appearance in the Diamond League meeting in Rome on Thursday, telling reporters he was confident that having an "off day" would not become a trend.
"I explained to my coach (Glen Mills) that my legs were not feeling that energetic, probably through a lack of sleep and not enough food," the 25-year-old Jamaican said.
"Since I got here I've been trying to get a lot more sleep and eating better so everything is seeming to be on a better track.
"You never have a good race every time you run. You have to just put that behind you and move on. It's not a worry. I have a lot more races and the main one is at the Olympics.
"I have set a high standard for myself so I know people like to see me run fast.
"I can't look at it as pressure. People expect you to do certain things - I know I will have my bad races but I have to stay strong and focused."
Bolt will face compatriot and former world record holder Asafa Powell in the 100m on Thursday, along with France's European champion Christophe Lemaitre and veteran Kim Collins.